16 people are under arrest in Japan - suspected to be behind an amateur online criminal organization which created both the malware to secretly use victims computers to mine Monero (which trades under XMR) and a variety of websites to lure the victims in and get them to unknowingly install the malicious software.

The arrests quietly began last month, with the final 3 suspects arrested this week. Local news outlet Asashireports:

"The case against the 16 men aged between 18 and 48 was announced on June 14, although the first arrests were made in March. The suspects all operated their own websites, and they allegedly sent programs to the computers of site users without their consent.The programs kicked into action on the users’ computers to conduct the often tedious and time-consuming task of mining to earn cryptocurrency."

If you're picturing a highly organized group of criminal geniuses I should also mention - they only made about $1000 total between the 16 of them.